diff --git a/core/modules/system/system.install b/core/modules/system/system.install
index 5b198e0..851aefc 100644
--- a/core/modules/system/system.install
+++ b/core/modules/system/system.install
@@ -142,19 +142,19 @@ function system_requirements($phase) {
   ];
   if (function_exists('phpinfo')) {
     if ($phase === 'runtime') {
-      $requirements['php']['description'][] = [
-        '#markup' => t('For more information <a href="@link">view the PHP configuration</a>.', ['@link' => (new Url('system.php'))->toString()]),
+      $requirements['php']['description'] = [
+        '#markup' => t('For more information <a href="@url">view the PHP configuration</a>.', ['@url' => (new Url('system.php'))->toString()]),
       ];
     }
   }
   else {
-    $requirements['php']['description'][] = [
+    $requirements['php']['description'] = [
       '#markup' => t('The phpinfo() function has been disabled for security reasons. To see your server\'s phpinfo() information, change your PHP settings or contact your server administrator. For more information, <a href="@phpinfo">Enabling and disabling phpinfo()</a> handbook page.', ['@phpinfo' => 'https://www.drupal.org/node/243993']),
     ];
   }
 
   if (version_compare($phpversion, DRUPAL_MINIMUM_PHP) < 0) {
-    $requirements['php']['description'][] = [
+    $requirements['php']['description'] = [
       '#markup' => t('Your PHP installation is too old. Drupal requires at least PHP %version.', ['%version' => DRUPAL_MINIMUM_PHP]),
     ];
     $requirements['php']['severity'] = REQUIREMENT_ERROR;
@@ -166,7 +166,7 @@ function system_requirements($phase) {
   // statements.
   if (($phase === 'install' || \Drupal::database()->driver() === 'mysql') && !SystemRequirements::phpVersionWithPdoDisallowMultipleStatements($phpversion)) {
     $requirements['php']['title'] = t('PHP (multiple statement disabling)');
-    $requirements['php']['description'][] = [
+    $requirements['php']['description'] = [
       '#markup' => t('PHP versions higher than 5.6.5 or 5.5.21 provide built-in SQL injection protection for mysql databases. It is recommended to update.'),
     ];
   }